pdfplumber.open returns AttributeError: 'bytes' object has no attribute 'encode'

[AngusWR]

import pdfplumber
with pdfplumber.open("sun.pdf") as pdf:
    test = pdf.pages[0]
    print(len(test.chars))

5125

import pdfplumber
with pdfplumber.open("cba.pdf") as pdf:
    test = pdf.pages[0]
    print(len(test.chars))

Traceback (most recent call last):
  File "C:\Users\orang\Desktop\bank_interest_rate_webscraper\testing00000000.py", line
2, in <module>
    with pdfplumber.open("cba.pdf") as pdf:
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfplumber\pdf.py", line 48, in open
    return cls(open(path, "rb"), **kwargs)
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfplumber\pdf.py", line 28, in __init__
    self.doc = PDFDocument(PDFParser(stream), password = password)
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfminer\pdfdocument.py", line 577, in __init__
    self._initialize_password(password)
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfminer\pdfdocument.py", line 603, in _initialize_password
    handler = factory(docid, param, password)
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfminer\pdfdocument.py", line 303, in __init__
    self.init()
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfminer\pdfdocument.py", line 310, in init
    self.init_key()
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfminer\pdfdocument.py", line 323, in init_key
    self.key = self.authenticate(self.password)
  File "C:\Users\orang\AppData\Local\Programs\Python\Python36\lib\site-packages\pdfminer\pdfdocument.py", line 371, in authenticate
    password = password.encode("latin1")
AttributeError: 'bytes' object has no attribute 'encode'

sun.pdf
cba.pdf

[CapAllen]

Got a same Error just now. LOL

[luoqygit]

I had the same problem today. I solved it by adding a 'password' parameter as below:

with pdfplumber.open("cba.pdf", password="") as pdf:

[jsvine]

Fixed, merged, and pushed. Thanks!